Wheel puller



Dern 27, 1927. `1,654,009

v A. J. MERTEN y WHEEL FULLER Filed Nov. 29, 1924 2+ Inf y Ww mpg/? n iOIM f- \\\\\\\\\ummuummuvmunfi Z4 E /2 /9 I A INVENTUR l WmnmmnuuuvlMagg'5 Q am@ Patented Dec. 27, 1927.

ARTHUR J. NEMEN, or" COLORADO SPRINGS, COLORADO.

WHEEL Application med November My invention relates to pullers ofthetype used in removing wheels from their axles on automobiles andother vehicles and its primary object is to provide in a device of thistype, an adapter-member ott novel construction, which intensifies thegripping action of the puller upon the hub of a wheel to which it isapplied.

Anotherl Object of the invention resides in the provision of anauxiliary member for fitting the device to hubs ot' different diam`eters and still furtherobjects are to be found in details ofconstruction as will fully appear in the course of the followingdescription made with reference to the accompanying drawings.

7h ile my invention is particularly adapted :for use in removing wheelsfrom their axles it may he advantageously employed tor the separation otcomponent parts of other ma chine elements, as for example, bearing'races and timing gears, and itis to be understood Athat in view of thisuniversal use of the device, variations in the form and arrangement ofits parts may be resorted to without departing from the scope of theinvention as defined in the hereunto appended claims.

In the drawings in the several views ot which like parts are similarlydesignated,

Figure l represents a sectional elevation ot 'my improved puller in itsope ative relation to the hub and axle of a wheel;

Figure 2 an end view of the device lookingr in the direction of thearrow 2 in Figure l;

Figure 3, an opposite end view of the puller looking in the direction ofthe arrow 3 in Figure 1; and

Figures 4, 5 and 6, views similar to Figure l, showingr modifications inthe construction Of the device to adapt it for use under differentconditions.

Referring first to Figures 'l to 3 inclusive, the puller consists ot ahollow body 5 having an axial sorew-threaded bore 6 for its cooperativeconnection, with the headed puller-screw 7 and a reduced angular'portion 5 forming a head Jfor the application of a wrench. i

The opposite open end ot the` body has an internal buttress thread 8which is cooperatively engaged by a corresponding eX- ternal thread onan annular adapter 9 which is internally screw threaded for the applica-FULLER.

29, 1924. Serial N0. 752,984.

tion oil the device to the hub of the Wheel to hel ren'iovedn i Theadapter is radially split and grooved as shown at l() and 11.2 in Figure3 tor the purpose oi? permitting it to contract upon the part Aitengages, by a. relative axial movement ot the body, under the wedginginiuence ol'i the coordinated huttress threads.

A set screw 13 `on the hody extends loosely in an opening' ot theadapter to hold the latter against independent rotation.

'In the application of the device to a wheel oi the general constructionillustrated in the drawings.` the puller is screwed upon tho ex ternallyscrew-threaded hub la; of the wheel and the screw '7 moved in engagementwith the end of the axle 15 ot' the same after the cap and the nut whichnormally are screwed upon these parts, have been reuioved. i

lVheu by longitudinal pressure upon the end of the axle tliroughvfurther rotation of the screw`r the wheel is compelled to slideoutwardly on the axle. the. buttress teeth on the axially moving bodyproduce hy engagew ment with the corresponding teeth on the adapter. awedging action which causes the annulus to contract upon the hub, itbeing understood that the set screw 1,3 is loose in the opening of theadapter so as to permit oi a limited movement ot the latter within thebody ot the device.

The clamping action. oit the adapter on the hub relieves the screwthreads of the latter from damaging stress, while it insures a rigidconnection between the puller and the hub proportionate to the forcerequired to remove the wheel from the axle.

For the use ot the puller on a wheel hub or other machine part having asmooth sur# tace, the device is provided with an adapter 16 havinginternal buttress teeth 17 as illus trated in Figure 1-, which bite intothe smooth surface when the adapter is contracted in the operation otthe appliance as hereinbeforc described.

In Order to adapt the puller to hubs or other machine parts oi`differing diameters. a .fitting-ring 1S is interposed between theadapter and the body of the device as shown in Figures 5 and 6j Tn theconstruction of' Figure 5, the ring i8 has an external buttress thread19 which engages with the internal thread of the body 5, and it isprovided with a correspondingly llt) . formed internal thread QOrwhichco-operates with the external thread of the adapter 9.

, and one fitting ring, the appliance is readily adjusted to any onechine parts of different external diameters. A set screw 21 is employedto connect the adapter and the fitting-ring' against independentrotation. r I n the .modification illustrated in Figure (i, theannularadapter'QQ and the fittingr ring 23 are connected Vby thefrictional Contact of smooth tapering sllrfaceavythereby eliminatingboth the screw threads and the set-screw of theform shown inFigure 5.

-The useiof a buttress thread as inthe other y form of theinvention is,however,preferable not' only for the reason .that it y provides aposltlve and dependable method ot forcing' the adapter to clampingengagement witli the hub, but also because it tends to hold the adapterfirmly against axial movement whiltI the device is applied.`

vIt will be understood that the advantages of an abrnpt taper can behad` witha` buttresss thread of any desired length withoutmaterialvariation inthe diameter of the adapter. :l

of. a plurality of ma-V Having thus described my invention, what I,claim' and desire to .secure by Letters Patent is: 'f

1. A puller of the character described, comprising a hollow body, aradially-contractible, 'annular adapter split throughoutits length andlongitudinally groovcd for its ready and uniform contraction, theadapter and the body having cooperatingr buttress screw-threads toeffect the contrae tion ot the former by axial movement of the latter,and a screw on the body to effect vits longitudinal movement byengagement with a relatively stationary object.

2. A wheel puller of the character dcscribed, comprising,r an annularbody, a radially-contractible adapter, the adapter and the body havingcooperating buttress screwthreads to effect the contraction of theformer by axial movement of the latter, a setscrew cooperating with theadapter and the body to canse the two to rotate conjunctively, saidset-screw passing through the body. thereby being accessible from theexterior ot the puller when it is in its operative position on a wheel,and a screw on the body to effect its longitudinalv movement byengagement with a relatively stationary object.

In testimony whereof I have alixed my signature.

ARTHUR J. MERTEN

